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Engineering Worksheet: Materials

Engineering lesson 19: Materials and their properties · Set 338 · 40 questions
TalentJR

Engineer's tip (Match the property to the job): Ask: what must it do — keep water out, bend, let light through, carry current or stay cool? Metals and graphite conduct electricity; rubber, plastic, dry wood, glass, pottery and cloth insulate. Pick the material whose main property fits the job.

NameDateTime takenScore ___ / 40
  1. 1.Which of these needs a transparent material? (a) a plug pin (b) a car seat belt (c) a spectacle lens (d) a switch contact
  2. 2.🔍 Which is the odd one out? (a) brass (b) clay pottery (c) iron (d) steel
  3. 3.Which of these needs a flexible material? (a) an oven glove (b) a plug pin (c) a roof sheet (d) a hair band
  4. 4.🧱 Is clay pottery an electrical conductor or an insulator? (a) a conductor (b) an insulator
  5. 5.Which of these needs an electrical conductor? (a) a skipping rope (b) a boat hull (c) a window pane (d) a switch contact
  6. 6.🧱 Which property matters most for a plug pin? (a) transparent (b) electrical conductor (c) waterproof (d) flexible
  7. 7.True or false: a skipping rope needs a heat insulator. (a) False (b) True
  8. 8.🔍 Which is the odd one out? (a) clay pottery (b) glass (c) copper (d) plastic
  9. 9.True or false: a boat hull needs an electrical conductor. (a) False (b) True
  10. 10.🔍 Which is the odd one out? (a) brass (b) steel (c) glass (d) iron
  11. 11.🔍 Which is the odd one out? (a) copper (b) graphite (c) iron (d) rubber
  12. 12.True or false: a raincoat needs a heat insulator. (a) False (b) True
  13. 13.True or false: a plug pin needs an electrical conductor. (a) True (b) False
  14. 14.True or false: a water tank needs a waterproof material. (a) False (b) True
  15. 15.True or false: a skipping rope needs a waterproof material. (a) True (b) False
  16. 16.🧱 Is iron an electrical conductor or an insulator? (a) a conductor (b) an insulator
  17. 17.🧱 Which material is best for a window pane? (a) glass (b) brick (c) wood (d) steel
  18. 18.Which of these needs a waterproof material? (a) a boat hull (b) a car windscreen (c) a switch contact (d) a skipping rope
  19. 19.True or false: a cooking pot handle needs a heat insulator. (a) True (b) False
  20. 20.True or false: a spectacle lens needs a transparent material. (a) False (b) True
  21. 21.🧱 Is plastic an electrical conductor or an insulator? (a) a conductor (b) an insulator
  22. 22.True or false: a plug pin needs a waterproof material. (a) False (b) True
  23. 23.🧱 Is brass an electrical conductor or an insulator? (a) a conductor (b) an insulator
  24. 24.True or false: a boat hull needs a transparent material. (a) True (b) False
  25. 25.True or false: a raincoat needs a waterproof material. (a) False (b) True
  26. 26.🔍 Which is the odd one out? (a) cotton cloth (b) glass (c) graphite (d) plastic
  27. 27.🧱 Which property matters most for a switch contact? (a) electrical conductor (b) transparent (c) heat insulator (d) flexible
  28. 28.Which of these needs a waterproof material? (a) an umbrella cover (b) a hair band (c) a window pane (d) a skipping rope
  29. 29.🧱 Which property matters most for a water tank? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  30. 30.Which of these needs a flexible material? (a) a tea flask lining (b) a roof sheet (c) a raincoat (d) a skipping rope
  31. 31.🧱 Which property matters most for a raincoat? (a) flexible (b) transparent (c) heat insulator (d) waterproof
  32. 32.🔍 Which is the odd one out? (a) plastic (b) steel (c) aluminium (d) brass
  33. 33.🧱 Which material is best for the bars inside concrete? (a) glass (b) plastic (c) rubber (d) steel
  34. 34.True or false: a window pane needs a waterproof material. (a) True (b) False
  35. 35.🧱 Which material is best for a raincoat? (a) cotton wool (b) cardboard (c) plastic-coated cloth (d) paper
  36. 36.Which of these needs a heat insulator? (a) a magnifier lens (b) a cooking pot handle (c) a yoga mat (d) a spectacle lens
  37. 37.🧱 Is graphite an electrical conductor or an insulator? (a) an insulator (b) a conductor
  38. 38.Which of these needs a flexible material? (a) a magnifier lens (b) a yoga mat (c) a cooking pot handle (d) a boat hull
  39. 39.🧱 Which material is best for the core of an electric wire? (a) wood (b) rubber (c) glass (d) copper
  40. 40.🧱 Which property matters most for a boat hull? (a) electrical conductor (b) heat insulator (c) waterproof (d) flexible

Answer key

  1. a spectacle lens
  2. clay pottery
  3. a hair band
  4. an insulator
  5. a switch contact
  6. electrical conductor
  7. False
  8. copper
  9. False
  10. glass
  11. rubber
  12. False
  13. True
  14. True
  15. False
  16. a conductor
  17. glass
  18. a boat hull
  19. True
  20. True
  21. an insulator
  22. False
  23. a conductor
  24. False
  25. True
  26. graphite
  27. electrical conductor
  28. an umbrella cover
  29. waterproof
  30. a skipping rope
  31. waterproof
  32. plastic
  33. steel
  34. False
  35. plastic-coated cloth
  36. a cooking pot handle
  37. a conductor
  38. a yoga mat
  39. copper
  40. waterproof

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